Locomotive bogie having lifting dogs

ABSTRACT

A bogie equipped locomotive in which the vehicle box normally rests on the pertaining bogies, and in which said bogies only are provided with lifting dogs for lifting said bogies and said vehicle box as a unit.

United States Patent Bitter-berg 1 Aug. 14, 197 3 LOCOMOTIVE BOGIE HAVING LIFIING [56] References Cited DOGS UNITED STATES PATENTS [75] Inventor: Friedhelm Bitterberg, Fuldatal, 538,661 5/1895 Davis 105/199 R Germany 2,505,003 4/1950 Perry et a1. 104/32 R 89,758 5/1869 Fremont 104/32 R Asslgnw Rheiflmhl Hell-W118 I 229,072 6/1880 Allen 104/32 R x Aktiengesellschait, Kassel, Germany 1,002,797 9/1911 Appleton et a1. 104/32 R [22] Filed: .Jan. 29 1971 2,559,703 7/1951 Bergman 294/67 DA X [21} APPL No: 110,890 v FOREIGN PATENTS OR APPLICATIONS 362,741 12/1931 Great Britain 294/67 EA 1,242,131 4/1960 France 294/67 DB [30] Foreign Application Priority Data Jan. 31, 1970 Germany P 20 04 416.0 Primary Examiner-Gerald M. Forlenza Assistant ExaminerI-loward Beltran [52] US. Cl. 105/1 A, 104/32 A, 105/157 R, Attorney-Walter Becker 294/67 DB, 294/67 R [51] Int. Cl B6ld 49/00, B61f 5/50, B66c l/20 57 ABSTRACT [58] Field of Search 104/1, 32 R, 32 A,

104/1 R; 105/1, 199 R, l A, 157 A, 178, 157

R, 182 R, 199 R, 200, 202, 204, 205, 206, 208, 216, 217; 280/179 A; 294/67 D, 67 DA, 67 DB, 67 DC, 67 E, 67 BA, 67 R; 296/] R A bogie equipped locomotive in which the vehicle box normally rests on the pertaining bogies, and in which said bogies only are provided with lifting dogs for liftin said bogies and said vehicle box as a unit.

1 Claim, 2 Drawing Figures PATENIEB we 1 41915 FIG-I 1 LOCOMOTIVE BOGlE HAVING LIFTING DOGS The present invention relates to a rail vehicle, the drive assembly of which, is formed by one or more bo gies or trucks, and in particular concerns a locomotive with a hoisting device.

if it is desired, for instance, after a derailment or when loading a rail vehicle, to lift the rail vehicle, hoisting means of the loading cranes extend below hoisting lugs or claws provided on the vehicle structure. These lugs or claws on the vehicle structure are provided by the designer of the vehicle for this very purpose and are so designed that the force required for lifting the entire vehicle is introduced into the vehicle body. .When the vehicle body is lifted correspondingly, the bogies are suspended on the vehicle body through the intervention of suspension devices interposed between bogie and vehicle body. The bogies have after a corresponding lifting of the vehicle body sunk downwardly relative to the vehicle body by the play in the suspension. This play is so great that, with the possible maximum relative movements occurring in operation between the vehicle body and the bogie, said play will not be exhausted. With this type of lifting, the hoisting device has to overcome a correspondingly greater stroke or it has to'be corrected a plurality of times in the suspension.

With self-propelled vehicles, especially with electric locomotives, the mass of the bogies may equal or even exceed the mass of the vehicle body. Moreover, the springiness of the springs between the vehicle body and the bogies may be greater than the play in the suspension between the bogie and the vehicle body which means that the springs are not completely relaxed and thus exert a load by their residual force in additiion to the bogie mass upon the suspension device.

For possible instances of lifting the vehicle body with the bogies suspended thereon, a considerable additional expenditure is necessary for the suspension device between the bogie and the vehicle body. In addition thereto, it is necessary carefully to design the points of engagement on the vehicle body and on the bogies in order to introduce the forces in a proper manner.

It is an object of the present invention to provide a bogie equipped rail vehicle, especially locomotive, in such a way that the hoisting thereof can be effected with a shorter stroke of the hoisting devices and'at lower expenditure.

It is a further object of this invention to provide a rail vehicle, as set forth in the preceding paragraph, in which the vehicle body and bogies will be greatly simplified and the danger of damaging important parts during the hoisting will be practically eliminated.

These and other objects and advantages of the inverttion will appear more. clearly from the following specification, inconnection with the accompanying drawing, in which: 4 1

FIG. 1 diagrammatically illustrates a side view of a locomotive according to the invention in which cables of the hoisting means engage claws or lugs on both bogies.

FIG. 2 is a section taken along the line ll-ll of FIG.

The rail vehicle according to the present invention which is provided with a bogie is characterized primarily in that the vehicle body with the bogies suspended thereon is no longer hoisted but the bogies can be lifted with the vehicle body resting thereon. This reversal of the lifting conditions is solved as follows: The hoisting 'claws are arranged on the bogies instead of on the vehicle body, in case the latter is to be lifted off the bogies,

and for again depositing the vehicle body, lifting points are, in a manner known per se, provided on the vehicle body. The advantages of the present invention make themselves manifest when a bogie of the vehicle has derailed. In such an instance the bogie is turned and inclined and the wheel rims stop in the gravel bed of the track. According to the customary method of returning the vehicle to the track a lifting device is placed below a head piece of the vehicle body, and the said body is lifted to such an extent that the bogie hangs freely above the rail upper edge. Above all, with vehicles having heavy bogies, as is the case with electric locomotives, the vehicle body is under a considerably higher load than is the case during normal operation. The dimensioning of the vehicle body with vehicles of this type is effected primarily in conformity with the stresses to which the vehicle body is exposed when, following derailment, the vehicle is placed back onto the rails.

In view of the solution advanced by the present invention, the bogies themselves offer easily accessible hoisting areas below which the hoisting devices can be placed without disassembly operations. The vehicle body is not exposed to any loads which would exceed the normal load during driving operation. By transferring the problem of absorbing the stresses during a derailment upon the bogie, the work necessary when loading and returning the vehicle onto the track is greatly facilitated. Due to the fact that the forces, in contrast to heretofore customary designs and operation, no longer have to be absorbed, by the vehicle body, the vehicle body can be made considerably lighter and a corresponding saving is obtained. Moreover, the suspension device between vehicle body and bogie becomes superfluous.

Referring now to the drawing in detail, the arrangement shown therein comprises transverse struts 1 which extend beyond the longitudinal beams 2 to the width of the vehicle. Below the ends 3 of the transverse struts, there are mounted lifting claws or dogs 4 around which are looped the cables 5 of the hoisting means pertaining to the hoisting device 6. Lifting claws 7 for lifting the vehicle body only may be provided on the vehicle box 8 at ordinary lifting points 7a thereof.

It is, of course, to be understood that the present invention is, by no means, limited to the particular showing in the drawing, but also comprises any modifications within the scope of the appended claims.

What I claim is:

l. A locomotive having bogies and a vehicle body normally supported on said bogies, each bogie having a frame including longitudinal beams along its opposite sides and transverse struts extending between said beams with their ends projecting outwardly beyond said beams on each side of said bogie, and a lifting dog on each end of each strut beyond the longitudinalbeam, so that a plurality of lifting dogs are provided on the ends of said struts on said bogies on both sides of said locomotive, for connecting hoisting cables to lift said locomotive through said bogies. 

1. A locomotive having bogies and a vehicle body normally supported on said bogies, each bogie having a frame including longitudinal beams along its opposite sides and transverse struts extending between said beams with their ends projecting outwardly beyond said beams on each side of said bogie, and a lifting dog on each end of each strut beyond the longitudinal beam, so that a plurality of lifting dogs are provided oN the ends of said struts on said bogies on both sides of said locomotive, for connecting hoisting cables to lift said locomotive through said bogies. 